Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Flush shmem writes before mapping buffers CPU-uncached The shmem layer zeroes out the new pages using cached mappings, and if we don't CPU-flush we might leave dirty cachelines behind, leading to potential data leaks and/or asynchronous buffer corruption when dirty cachelines are evicted.
References
- https://git.kernel.org/stable/c/576c930e5e7dcb937648490611a83f1bf0171048
- https://git.kernel.org/stable/c/7a12f9c96d06b145562f76ffb20369b4692f0911
- https://git.kernel.org/stable/c/8355eea2a2e9c323021dfdcb95d7767d382123c4
FAQ
What is CVE-2025-40276?
CVE-2025-40276 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Flush shmem writes before mapping buffers CPU-uncached The shmem layer zeroes out the new pages using cached mappings...
How severe is CVE-2025-40276?
CVSS scoring is not yet available for CVE-2025-40276. Check NVD for updates.
Is there a patch for CVE-2025-40276?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.